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Overview
Fennel has dense overlapping layers that can cook unevenly in a dry pan. The bath gently softens a trimmed bulb before you slice it for the plate or brown a cut face.
This guide follows the Great British Chefs method for bulbs, keeping the fronds aside for a fresh garnish. Bulb size matters, so test tenderness after the listed time and finish firm pieces in a covered pan.
Time and temperature
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| Texture | Bath setting | Cook time |
|---|---|---|
| Tender Bulbs | 185°F | 45 minutes |
Whole fennel bulbs with the woody base, tough outer layers, and stalk tips trimmed away. Start timing when the bag enters the fully heated circulating bath. Check tenderness after the listed time and finish firm pieces on the stove. Serve immediately.
Choose your texture
- 185°FTender Bulbs
- The layered bulb softens while keeping its shape for slicing or browning.
Best for
- Whole fennel bulbs with the woody base, tough outer layers, and stalk tips trimmed away.
Get it ready
- Rinse the bulb and remove grit between loose layers. Trim stalks, the woody base, and any tough outer layer.
- Save clean tender fronds separately for serving.
- Bag the trimmed bulb with a little olive oil and salt, leaving room around it.
- Seal, submerge in the fully heated bath, and start the listed time. Keep the bag below the water surface.
Finish and serve
- Remove the fennel from the bag and test near the center with a skewer.
- If the center remains firm, finish in a covered pan with a splash of water until tender.
- Slice for serving, or dry a broad cut face and brown it in a skillet.
- Dress with fresh lemon, olive oil, and the reserved fronds. Serve immediately.
Useful tips
- Leave enough of the base to hold the layers together when serving neat slices.
- A browned cut face adds a savory edge to the fennel's sweetness.
- Use the tender fronds as a garnish and keep woody stalks out of the serving portion.
Common problems
- The center stays crunchy
- The bulb is larger or denser than those used in the source. Finish in a covered pan until a skewer enters the center easily.
- The bulb falls into loose layers
- Too much of the base was removed. Trim the woody end without cutting away the entire base.
Questions
QDoes this include stalks and fronds?
QShould every bulb be tender after 45 minutes?
QCan I serve it cold later?
Cook safely
Wash your hands for at least 20 seconds and rinse the produce under running water before cutting. Remove damaged areas and use no soap on produce. Keep it away from raw meat and seafood, use clean equipment, and serve immediately after cooking and finishing.
The listed time is for texture; it is not a preservation method. These instructions do not cover canning, sealed storage, chilling, reheating, hot holding, or freezing. Never leave a sealed bag at room temperature.